Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
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عندكم جزئية الاميونيتي 22سؤال حاولو تمرو عليهن لما تكملو الكورس
عندكم جزئية الاميونيتي 22سؤال حاولو تمرو عليهن لما تكملو الكورس
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
Which of the following characteristics does not apply to adaptive ?
Anonymous Quiz
12%
(A) Highly antigen specific
9%
(B) Induces memory
70%
(C) Rapid, immediate response
9%
(D) Induces cytokine production
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
NK cells contribute to innate immunity in all of the following
ways except:
ways except:
Anonymous Quiz
9%
(A) Killing virus infected cells
8%
(B) Killing tumor cells
15%
C) Inducing IFN-gamma production
25%
D) Participate in antibody-dependent cellular cytotoxicity (ADCC)
44%
(E) Initiating antigen presentation
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
3. As part of the innate immune response, which cells participate
in phagocytosis?
in phagocytosis?
Anonymous Quiz
11%
(A) Macrophages and mast cells
8%
B) Macrophages and plasma cells
15%
C) NK cells and neutrophils
63%
D) Macrophages and neutrophils
3%
E) T cells and mast cells
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
4. The immunoglobulin class most frequently responsible for
inhibition of bacteria on mucosal surfaces is:
inhibition of bacteria on mucosal surfaces is:
Anonymous Quiz
16%
A) IgG
8%
B) IgM
65%
C) IgA
9%
C) IgE
2%
E) IgD
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
5. Which of the following properties is associated with MHC?
Anonymous Quiz
66%
A) Binds peptide antigen and presents it to T cells
4%
B) Binds virus particles and neutralizes the virus
8%
C) Binds LPS and interferes with bacterial phagocytosis
6%
C) Binds LPS and interferes with bacterial phagocytosis
15%
D) Binds self-antigens and presents them to NK cells
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
6. Which of the following items regarding T cells located in lymph
node follicles participate in B cell help with isotype switching
and antibody production?
node follicles participate in B cell help with isotype switching
and antibody production?
Anonymous Quiz
27%
A) Th1 cells
41%
B) Th2 cells
11%
C) Th17 cells
19%
D) T reg
2%
(E) Tfh cell
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
7. Which of the following functional properties are not associated
with IFN-gamma?
with IFN-gamma?
Anonymous Quiz
20%
A) Induces production of other pro-inflammatory cytokines
20%
B) Anti-proliferative activity
25%
C) Anti-viral activity
35%
D) Triggers plasma cell formation and antibody production
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
8. Which of the following cytokines can inhibit or downregulate
the immune response?
the immune response?
Anonymous Quiz
35%
A) IFN-beta and IL-10
33%
B) IFN-gamma and IL-10
13%
C) IFN-beta and IL-2
19%
D) IL-17 and IL-
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
9. The initial step in antibody formation begins with the binding
of antigen to the B cell surface immunoglobulin via:
of antigen to the B cell surface immunoglobulin via:
Anonymous Quiz
21%
(A) MHC class I molecule
36%
B) MHC class II molecule
39%
C) B cell recepter (BCR)
4%
(D) KIRS
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
10. Which of the cytokines attracts neutrophils and inhibit
bacteria?
bacteria?
Anonymous Quiz
26%
(A) IFN-gamma (B) IL-8 (CXCL8)
31%
B) IL-8 (CXCL8)
15%
C) IL-2
18%
D) IL-6
10%
(E) TGF-β
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
11. MHC class I molecules are critically important in what immu-
nologic process?
nologic process?
Anonymous Quiz
5%
A) IgE-mediated histamine release
9%
(B) Phagocytosis
10%
C) Immunoglobulin class switching
73%
D) CD8+ T-cell cytotoxici
3%
E) Opsonization
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
12. The host response to the interaction of a pathogen with its specific
TLR generates which of the following?
TLR generates which of the following?
Anonymous Quiz
5%
(A) IgG production
35%
B) Cell activation and production of cytokines and chemokines
13%
C) Immunoglobulin class switching
16%
D) Phagocytosis (E) Presentation of
31%
E) Presentation of pathogen to helper T cell
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Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
13. The interaction of two IgG molecules binding to antigen followed
by the binding of C1 to the Fc portion of the antibody
results in which of the following?
by the binding of C1 to the Fc portion of the antibody
results in which of the following?
Anonymous Quiz
8%
(A) Initiation of antigen presentation
73%
B) Initiation of classical complement pathway
12%
(C) Initiation of alternative complement pathway
7%
D) Initiation of the mannose-binding lectin-binding comple- ment pathway
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
14. Which genetic mechanism generates antibodies of the same
specificity but different immunoglobulin classes?
specificity but different immunoglobulin classes?
Anonymous Quiz
15%
A) V gene segment recombination
54%
B) Class switching
15%
C) Somatic hypermutation
16%
D) Junctional variability due to imprecise V, D, and Joining